Ответ:
Вопросы строятся с нужной формой глагола to be: are с they/you, is с it/he.
- Are they in grade 5? Yes, they are.
- Are you 11 years old? No, I’m not.
- Is it a ruler? Yes, it is.
- Are you and Mary in the same class? No, we aren’t.
- Is he Mark? No, he isn’t.
